1. Stratosphere is above the troposphere layer.
2. The mesosphere extended above the earth’s surface is up to 85 km.
3. All vital atmosphere process leading to various climate and weather conditions take place in the troposphere.
4. On the day of the summer solstice in the northern hemisphere length of day time on the Antarctic Circle is 24 hours.
5. Days and nights are equal duration on March 21st at all parallel of latitude.

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